WANG Hao, LIU Guohua, LI Zongshan, YE Xin, FU Bojie, LV Yihe. Impacts of Drought and Human Activity on Vegetation Growth in the Grain for Green Program Region, China[J]. Chinese Geographical Science, 2018, 28(3): 470-481. doi: 10.1007/s11769-018-0952-8
Citation: WANG Hao, LIU Guohua, LI Zongshan, YE Xin, FU Bojie, LV Yihe. Impacts of Drought and Human Activity on Vegetation Growth in the Grain for Green Program Region, China[J]. Chinese Geographical Science, 2018, 28(3): 470-481. doi: 10.1007/s11769-018-0952-8

Impacts of Drought and Human Activity on Vegetation Growth in the Grain for Green Program Region, China

doi: 10.1007/s11769-018-0952-8
Funds:  Under the auspices of the National Key R&D Program of China (No. 2017YFC0504701), Science and Technology Service Network Initiative Project of Chinese Academy of Sciences (No. KFJ-STS-ZDTP-036), Fundamental Research Funds for the Central Universities (No. GK201703053), China Postdoctoral Science Foundation (No. 2017M623114)
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  • Corresponding author: WANG Hao.E-mail:foreva@snnu.edu.cn
  • Received Date: 2017-05-02
  • Rev Recd Date: 2017-08-29
  • Publish Date: 2018-06-27
  • The Chinese government adopted six ecological restoration programs to improve its natural environments. Although these programs have proven successful in improving local environments, some studies have questioned their performance when regions suffer from drought. Whether we should consider the effects of drought on vegetation change in assessments of the benefits of ecological restoration programs is unclear. Therefore, taking the Grain for Green Program (GGP) region as a study area, we estimated vegetation growth in the region from 2000-2010 to clarify the trends in vegetation and their driving forces. Results showed that:1) vegetation growth increased in the GGP region during 2000-2010, with 59.4% of the area showing an increase in the Normalized Difference Vegetation Index (NDVI). This confirmed the benefits of the ecological restoration program. 2) Drought can affect the vegetation change trend, but human activity plays a significant role in altering vegetation growth, and the slight downward trend in the NDVI was not consistent with the severity of the drought. Positive human activity led to increased NDVI in 89.13% of areas. Of these, 22.52% suffered drought, but positive human activity offset the damage in part. 3) Results of this research suggest that appropriate human activity can maximize the benefits of ecological restoration programs and minimize the effects of extreme weather. We therefore recommend incorporating eco-risk assessment and scientific management mechanisms in the design and management of ecosystem restoration programs.
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Impacts of Drought and Human Activity on Vegetation Growth in the Grain for Green Program Region, China

doi: 10.1007/s11769-018-0952-8
Funds:  Under the auspices of the National Key R&D Program of China (No. 2017YFC0504701), Science and Technology Service Network Initiative Project of Chinese Academy of Sciences (No. KFJ-STS-ZDTP-036), Fundamental Research Funds for the Central Universities (No. GK201703053), China Postdoctoral Science Foundation (No. 2017M623114)
    Corresponding author: WANG Hao.E-mail:foreva@snnu.edu.cn

Abstract: The Chinese government adopted six ecological restoration programs to improve its natural environments. Although these programs have proven successful in improving local environments, some studies have questioned their performance when regions suffer from drought. Whether we should consider the effects of drought on vegetation change in assessments of the benefits of ecological restoration programs is unclear. Therefore, taking the Grain for Green Program (GGP) region as a study area, we estimated vegetation growth in the region from 2000-2010 to clarify the trends in vegetation and their driving forces. Results showed that:1) vegetation growth increased in the GGP region during 2000-2010, with 59.4% of the area showing an increase in the Normalized Difference Vegetation Index (NDVI). This confirmed the benefits of the ecological restoration program. 2) Drought can affect the vegetation change trend, but human activity plays a significant role in altering vegetation growth, and the slight downward trend in the NDVI was not consistent with the severity of the drought. Positive human activity led to increased NDVI in 89.13% of areas. Of these, 22.52% suffered drought, but positive human activity offset the damage in part. 3) Results of this research suggest that appropriate human activity can maximize the benefits of ecological restoration programs and minimize the effects of extreme weather. We therefore recommend incorporating eco-risk assessment and scientific management mechanisms in the design and management of ecosystem restoration programs.

WANG Hao, LIU Guohua, LI Zongshan, YE Xin, FU Bojie, LV Yihe. Impacts of Drought and Human Activity on Vegetation Growth in the Grain for Green Program Region, China[J]. Chinese Geographical Science, 2018, 28(3): 470-481. doi: 10.1007/s11769-018-0952-8
Citation: WANG Hao, LIU Guohua, LI Zongshan, YE Xin, FU Bojie, LV Yihe. Impacts of Drought and Human Activity on Vegetation Growth in the Grain for Green Program Region, China[J]. Chinese Geographical Science, 2018, 28(3): 470-481. doi: 10.1007/s11769-018-0952-8
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